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WO2010115158A3 - Variable gain instrumentation amplifier - Google Patents

Variable gain instrumentation amplifier Download PDF

Info

Publication number
WO2010115158A3
WO2010115158A3 PCT/US2010/029862 US2010029862W WO2010115158A3 WO 2010115158 A3 WO2010115158 A3 WO 2010115158A3 US 2010029862 W US2010029862 W US 2010029862W WO 2010115158 A3 WO2010115158 A3 WO 2010115158A3
Authority
WO
WIPO (PCT)
Prior art keywords
instrumentation amplifier
gain
variable gain
selectable
gain instrumentation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2010/029862
Other languages
French (fr)
Other versions
WO2010115158A2 (en
Inventor
Paul L. Bugyik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of WO2010115158A2 publication Critical patent/WO2010115158A2/en
Publication of WO2010115158A3 publication Critical patent/WO2010115158A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

Techniques for providing an instrumentation amplifier having a plurality of selectable gain settings. In an exemplary embodiment, a gain adjustment block for accepting a differential input voltage is coupled to a differential-to-single-ended conversion block for generating a single-ended output voltage. The gain adjustment block may have a plurality of gain settings selectable by one or more switches. The instrumentation amplifier advantageously offers precise gain control without the need for external calibration, while being robust and simple to design.
PCT/US2010/029862 2009-04-03 2010-04-02 Variable gain instrumentation amplifier Ceased WO2010115158A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/418,408 2009-04-03
US12/418,408 US8138830B2 (en) 2009-04-03 2009-04-03 Variable gain instrumentation amplifier

Publications (2)

Publication Number Publication Date
WO2010115158A2 WO2010115158A2 (en) 2010-10-07
WO2010115158A3 true WO2010115158A3 (en) 2010-11-25

Family

ID=42328209

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/029862 Ceased WO2010115158A2 (en) 2009-04-03 2010-04-02 Variable gain instrumentation amplifier

Country Status (3)

Country Link
US (1) US8138830B2 (en)
TW (1) TW201108602A (en)
WO (1) WO2010115158A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106505985A (en) * 2015-09-03 2017-03-15 联发科技股份有限公司 Single-end-to-differential conversion circuit and signal processing module

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8368464B2 (en) * 2011-03-14 2013-02-05 King Fahd University Of Petroleum And Minerals Balanced output signal generator
JP2014089087A (en) * 2012-10-30 2014-05-15 Yamaha Corp Offset canceling circuit
RU2519032C1 (en) * 2012-12-14 2014-06-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Российский государственный университет экономики и сервиса" (ФГБОУ ВПО "ЮРГУЭС") Instrumentation amplifier
US9065400B2 (en) * 2013-09-20 2015-06-23 Honeywell International Inc. Programmable-gain instrumentation amplifier
JP2015152382A (en) * 2014-02-13 2015-08-24 日置電機株式会社 measuring device
US10149628B2 (en) 2014-05-20 2018-12-11 Samsung Electronics Co., Ltd. Signal processing method and apparatus
US9780734B2 (en) * 2015-10-06 2017-10-03 Qualcomm Incorporated Noise cancelling baseband amplifier
US10587234B2 (en) * 2017-07-12 2020-03-10 Honeywell International Inc. Non-inverting differential amplifier with configurable common-mode output signal and reduced common-mode gain
US10979009B2 (en) 2017-07-12 2021-04-13 Honeywell International Inc. Non-inverting differential amplifier with configurable common-mode output signal and reduced common-mode gain
US10419014B2 (en) * 2018-02-06 2019-09-17 Analog Devices, Inc. Differential output PGIA architecture
RU2715471C1 (en) * 2019-08-02 2020-02-28 Федеральное государственное бюджетное учреждение науки Институт проблем управления им. В.А. Трапезникова Российской академии наук Inverting scale amplifier with controlled degree
US11502649B2 (en) * 2020-04-16 2022-11-15 Mediatek Inc. High-linearity differential to single ended buffer amplifier
CN116346054B (en) * 2021-12-23 2026-01-13 瑞昱半导体股份有限公司 Amplifier circuit
CN116388706B (en) * 2022-12-13 2023-10-20 无锡前诺德半导体有限公司 Semiconductor device with a semiconductor layer having a plurality of semiconductor layers

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US4451779A (en) * 1982-04-22 1984-05-29 Honeywell Inc. Voltage controlled current source
EP0112115A1 (en) * 1982-12-08 1984-06-27 Honeywell Inc. Sensor communication system
WO1998020615A2 (en) * 1996-10-21 1998-05-14 Electronics Development Corporation Smart sensor module
US6489845B1 (en) * 2000-04-04 2002-12-03 Goodrich Corporation Multiplexing amplifier
WO2003049282A1 (en) * 2001-11-29 2003-06-12 Infineon Technologies Ag Fully-differentiated differential amplifier with high input impedance
US6876070B1 (en) * 2000-10-04 2005-04-05 Analog Devices, Inc. Repatterned integrated circuit chip package
US20060130583A1 (en) * 2004-12-16 2006-06-22 Oki Electric Industry Co., Ltd. Output amplifier circuit and sensor device using the same

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Publication number Priority date Publication date Assignee Title
US3629719A (en) * 1969-08-22 1971-12-21 Bulova Watch Co Inc Differential amplifying system
US4337441A (en) * 1980-02-11 1982-06-29 Tektronix, Inc. Supply-voltage driver for a differential amplifier
US4833422A (en) * 1987-09-24 1989-05-23 Burr-Brown Corporation Programmable gain instrumentation amplifier
US5568561A (en) * 1993-04-22 1996-10-22 Whitlock; William E. Differential line receiver with common-mode AC bootstrapping
US5684431A (en) * 1995-12-13 1997-11-04 Analog Devices Differential-input single-supply variable gain amplifier having linear-in-dB gain control
US6396343B2 (en) * 2000-01-28 2002-05-28 Ngee Ann Polytechnic Low-frequency, high-gain amplifier with high DC-offset voltage tolerance

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4451779A (en) * 1982-04-22 1984-05-29 Honeywell Inc. Voltage controlled current source
EP0112115A1 (en) * 1982-12-08 1984-06-27 Honeywell Inc. Sensor communication system
WO1998020615A2 (en) * 1996-10-21 1998-05-14 Electronics Development Corporation Smart sensor module
US6489845B1 (en) * 2000-04-04 2002-12-03 Goodrich Corporation Multiplexing amplifier
US6876070B1 (en) * 2000-10-04 2005-04-05 Analog Devices, Inc. Repatterned integrated circuit chip package
WO2003049282A1 (en) * 2001-11-29 2003-06-12 Infineon Technologies Ag Fully-differentiated differential amplifier with high input impedance
US20060130583A1 (en) * 2004-12-16 2006-06-22 Oki Electric Industry Co., Ltd. Output amplifier circuit and sensor device using the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SEIFART, MANFRED: "Analoge Schaltungen", 1994, VERLAG TECHNIK GMBH, Berlin, ISBN: 3-341-01089-0, pages: 318 - 324, XP002593519 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106505985A (en) * 2015-09-03 2017-03-15 联发科技股份有限公司 Single-end-to-differential conversion circuit and signal processing module
CN106505985B (en) * 2015-09-03 2019-04-26 联发科技股份有限公司 Single-end-to-differential conversion circuit and signal processing module

Also Published As

Publication number Publication date
US8138830B2 (en) 2012-03-20
US20100259323A1 (en) 2010-10-14
TW201108602A (en) 2011-03-01
WO2010115158A2 (en) 2010-10-07

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